![]() See COPYING for distribution information. Copyright 1998-2011 Double Precision, Inc. Verify return code: 19 (self signed certificate in certificate chain) SSL handshake has read 2807 bytes and written 567 bytes Verify error:num=19:self signed certificate in certificate chain Note 2: I understand that I should get a certificate from a trusted authority, this is a temporary solution.Ģ) How do I "convince" Thunderbird that all certificates signed by my CA are trusted? Note: Both the CA and the mail certificate are signed using "SHA-1 With RSA Encryption". ![]() Here's a screenshot that illustrates the situation: Next, using this CA, I have generated (and signed) a certificate for, but even though I imported the CA, I keep getting the "Add Security Exception" popup with the message "Unknown Identity" when I'm trying to connect for the first time. ![]() I imported the public certificate using Thunderbird's certificate manager under the "Authorities" tab. Do not forget to use the port number of the mail server. Enter the name of your mail server and click on Get Certificate. Click on View Certificates and go to tab Servers. To demonstrate, I’m going to import the certificate of the Brazilian root CA ICP-Brasil, as my certificate was issued by a CA that belongs to its hierarchy.I have generated a self-signed certificate authority using as the common name. In Mozilla Thunderbird, go to Tools Options Advanced tab Certificates. Let’s see how to add a CA certificate to Thunderbird. Similarly as we did with the Firefox web browser, first we need to add our CA certificate to our Thunderbird email client, otherwise it won’t be able to validate our certificate hierarchy. Installing your CA certificate on Thunderbird How to install website certificates on Linux.In this post, you are going to see you can do that using the Mozilla Thunderbird email client.īefore starting, to get everyone on the same page, I recommend reading previous posts about digital certificates and Thunderbird: ![]() For instance, if you have a digital certificate, you can digitally sign the emails you send, giving their recipients more confidence about their authenticity and integrity. Although webmails are today more popular than email clients, some interesting features are exclusive of those desktop apps. ![]()
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